Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Middle Dutch
-sch
←
Proto-Germanic
*-iskaz
(inherited)
←
Old Dutch
-isc
(inherited)
→
Middle Dutch
dietsch
(affix)
→
Middle Dutch
wintersch
(affix)
→
Middle Dutch
somersch
(affix)
→
Dutch
-s
(inherited)
→
Dutch
-sch
(inherited)